Rashi on Genesis 38:23/רש"י על בראשית ל״ח:כ״ג

1תקח לה Let that remain hers which she has in her possession (i.e. LET HER KEEP IT).

2פן נהיה לבוז LEST WE BECOME A SCORN — if you seek her further the matter will become public and disgrace will follow, for what more can I do to redeem my promise? (for I have sent this kid etc and I can do no more).

3הנה שלחתי את הגדי הזה BEHOLD, I SENT THIS KID — Because Judah had deceived his father through a kid of the goats — for he had dipped Joseph’s coat in its blood — therefore he, too, was deceived through a kid of the goats (Genesis Rabbah 85:9).